24LC02BH-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC02BH-E/ST is a 2Kbit I2C EEPROM memory IC manufactured by Microchip Technology, packaged in 8-TSSOP surface mount configuration. This non-volatile memory device operates at 400 kHz I2C clock frequency with 900 ns access time and supports supply voltages from 2.5V to 5.5V across an operating temperature range of -40°C to 125°C. The device is RoHS3 compliant and currently in active production status. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, improved availability, extended temperature ranges, or enhanced performance specifications while maintaining functional compatibility.

Key Parameters

Parameter	Value
Memory Size	2Kbit
Memory Organization	256 x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Package Type	8-TSSOP
Mounting Type	Surface Mount
RoHS Status	RoHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 24LC02BH-E/ST are qualified based on the following critical parameters that determine functional interchangeability:

Core Compatibility Requirements:

Memory Size: 2Kbit (256 x 8 organization)
Memory Interface: I2C protocol
Package Type: 8-TSSOP surface mount
Memory Format: EEPROM non-volatile technology

Performance Parameters:

Clock Frequency: 400 kHz minimum
Access Time: 900 ns maximum
Write Cycle Time: 5ms maximum
Voltage Supply Range: Must encompass or exceed 2.5V ~ 5.5V
Operating Temperature: Must support -40°C minimum and 125°C maximum

Substitute parts meeting these criteria are grouped by manufacturer and packaging configuration. Parts with enhanced specifications (higher clock frequency, faster access time, lower minimum voltage, or extended temperature range) are direct functional upgrades. Parts with identical specifications are direct equivalents.

Parameter Comparison

Parameter	24LC02BH-E/ST (Main)	BR24G02FVT-3GE2	CAT34C02YI-GT5A	CAV24C02YE-GT3	M24C02-DRDW3TP/K	R1EX24002ATAS0I#U0
Manufacturer	Microchip Technology	Rohm Semiconductor	onsemi	onsemi	STMicroelectronics	Renesas Electronics
Memory Size	2Kbit	2Kbit	2Kbit	2Kbit	2Kbit	2Kbit
Memory Organization	256 x 8	256 x 8	256 x 8	256 x 8	256 x 8	256 x 8
Memory Interface	I2C	I2C	I2C	I2C	I2C	I2C
Clock Frequency	400 kHz	400 kHz	400 kHz	400 kHz	1 MHz	400 kHz
Access Time	900 ns	Not specified	900 ns	900 ns	450 ns	900 ns
Write Cycle Time	5ms	5ms	5ms	5ms	4ms	5ms
Voltage Supply Range	2.5V ~ 5.5V	1.6V ~ 5.5V	1.7V ~ 5.5V	2.5V ~ 5.5V	1.8V ~ 5.5V	1.8V ~ 5.5V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C
Package Type	8-TSSOP	8-TSSOP-B	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP
Packaging Format	Tube	Tape & Reel	Cut Tape & Digi-Reel	Tape & Reel	Tape & Reel	Cut Tape
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
Automotive Grade	Not specified	Not specified	Not specified	AEC-Q100	AEC-Q100	Not specified

Engineering Selection Recommendations

Direct Equivalent (Identical Specifications): CAV24C02YE-GT3 (onsemi) provides identical electrical specifications and operating temperature range (-40°C to 125°C) as the 24LC02BH-E/ST. This part carries AEC-Q100 automotive qualification, making it suitable for applications requiring automotive-grade components. Packaging is available in Tape & Reel format.

Enhanced Performance Substitute: M24C02-DRDW3TP/K (STMicroelectronics) offers superior performance with 1 MHz clock frequency, 450 ns access time, and 4ms write cycle time compared to the 400 kHz, 900 ns, and 5ms specifications of the main part. Operating temperature range extends to -40°C to 125°C. This part carries AEC-Q100 automotive qualification and is suitable for applications requiring faster I2C communication or extended automotive qualification.

Extended Voltage Range Substitutes: BR24G02FVT-3GE2 (Rohm Semiconductor), CAT34C02YI-GT5A (onsemi), and R1EX24002ATAS0I#U0 (Renesas Electronics) support lower minimum supply voltages (1.6V, 1.7V, and 1.8V respectively) compared to the 2.5V minimum of the main part. These are suitable for low-power applications. However, BR24G02FVT-3GE2, CAT34C02YI-GT5A, and R1EX24002ATAS0I#U0 are limited to -40°C to 85°C operating temperature, which does not meet the full temperature range of the original specification.

Product Status and Compliance: All substitute parts maintain active production status and RoHS3 compliance. Selection should prioritize parts matching the required operating temperature range and automotive qualification status if applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Can BR24G02FVT-3GE2 replace 24LC02BH-E/ST in all applications? A: BR24G02FVT-3GE2 is functionally compatible for I2C EEPROM operations at 400 kHz with 2Kbit capacity and 8-TSSOP packaging. However, its maximum operating temperature is 85°C, which does not meet the 125°C specification of the original part. Use this substitute only in applications where the maximum operating temperature does not exceed 85°C.

Q: What is the advantage of M24C02-DRDW3TP/K over the original 24LC02BH-E/ST? A: M24C02-DRDW3TP/K operates at 1 MHz I2C clock frequency with 450 ns access time and 4ms write cycle time, providing faster communication compared to the 400 kHz, 900 ns, and 5ms specifications of the original part. Both parts support -40°C to 125°C operating temperature and carry AEC-Q100 automotive qualification.

Q: Are all substitute parts available in the same packaging format as the original? A: All substitute parts use 8-TSSOP surface mount packaging. However, packaging formats differ: the original 24LC02BH-E/ST is supplied in Tube format, while substitutes are available in Tape & Reel (TR), Cut Tape (CT), or Digi-Reel formats. Verify packaging compatibility with your assembly process requirements.

Q: Which substitute part has the lowest minimum supply voltage? A: BR24G02FVT-3GE2 supports the lowest minimum supply voltage at 1.6V, compared to 1.7V (CAT34C02YI-GT5A), 1.8V (M24C02-DRDW3TP/K and R1EX24002ATAS0I#U0), and 2.5V (24LC02BH-E/ST and CAV24C02YE-GT3). Use BR24G02FVT-3GE2 for ultra-low-power applications requiring operation below 1.7V.

Q: Is CAV24C02YE-GT3 a direct replacement for 24LC02BH-E/ST? A: Yes, CAV24C02YE-GT3 is a direct equivalent with identical electrical specifications, operating temperature range (-40°C to 125°C), and I2C interface. The primary difference is AEC-Q100 automotive qualification, which makes it suitable for automotive applications. Both parts are RoHS3 compliant and use 8-TSSOP packaging.

Q: Can I use R1EX24002ATAS0I#U0 in high-temperature applications? A: R1EX24002ATAS0I#U0 is limited to -40°C to 85°C operating temperature, which does not support the 125°C maximum of the original 24LC02BH-E/ST. Use this part only in applications where maximum operating temperature does not exceed 85°C.

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